sorry, but this game shouldnt have been released, its full of bugs, and it contains no info about anything.
my first problem was seeing the upgrade menu, where i had no idea what i was doing, of course i was upgrading. but what are those men i can not buy? should i get all upgrades before getting them, or should i level up? what is the level up good for?
the gameplay is slow, attack range was kind of useless (buggy?), so i spent my time jumping above enemies, instead of hitting them.
the upgrades are buggy for sure, it is always great to play an easy to pick-up game (easy to start game) which only has two controls (up and right), but then it shouldnt be bugged. for example the run (duoble right) always had a problem with the attacking, so it started running like half of the time.
i would really like to play this game in the future (though it reminds me of games, so it is not really original), so if you have time, go and redo it.
best of luck